I tested a TCL smart lock, and its palm vein recognition feature blew me away
Briefly

The TCL D1 Pro smart lock is an affordable security device at $170, offering palm vein recognition along with five other unlocking methods. This lock is designed for easy installation and features biometric security for contactless access, scanning users' palm veins to unlock within seconds. By using near-infrared light to accurately detect vein patterns, it provides enhanced security compared to traditional fingerprint scanning. Despite its compact size, the lock delivers reliable performance, making it a notable option in the growing smart lock market.
The TCL D1 Pro smart lock features palm vein recognition, providing contactless entry and multiple unlocking methods, making it one of the most affordable options on the market.
By utilizing near-infrared light, the TCL D1 Pro identifies palm vein patterns within three inches, delivering quick and reliable access while ensuring strong biometric security.
Read at ZDNET
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